2154738500 has 48 divisors (see below), whose sum is σ = 4806127872. Its totient is φ = 843548000.

The previous prime is 2154738461. The next prime is 2154738517. The reversal of 2154738500 is 58374512.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22346 + ... + 69345.

It is an arithmetic number, because the mean of its divisors is an integer number (100127664).

Almost surely, 2^2154738500 is an apocalyptic number.

2154738500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154738500 is an abundant number, since it is smaller than the sum of its proper divisors (2651389372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154738500 is a wasteful number, since it uses less digits than its factorization.

2154738500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91757 (or 91745 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 2154738500 is about 46419.1609144327. The cubic root of 2154738500 is about 1291.6103719251.

The spelling of 2154738500 in words is "two billion, one hundred fifty-four million, seven hundred thirty-eight thousand, five hundred".